mitt romney plans to campaign there tonight. >> he'll debate president obama three times in the coming weeks and there will also be one vice presidential debate, this as a new presidential poll out this morning has the president with a 51% to 44% lead over governor romney. susan mcginnis has more. >> reporter: more than 11,000 people packed a high school in las vegas sunday night to listen to president obama. >> with' win nevada again -- we'll win nevada again. >> reporter: it was the president's last scheduled appearance before the first presidential debate on wednesday. >> governor romney, he's a good debater. i'm just okay. >> reporter: romney fit in another rehearsal after church in boston on sunday. he's been practicing since june. his running mate paul ryan says this will not be a defining moment. >> i don't think one event is going to make or break this campaign. >> reporter: but apparently not everyone got the memo to downplay expectations. >> thursday morning you're all going to be scraffing your heads saying -- scratching your heads saying wow, we have a barn burner the next